UNIX for Dummies Questions & Answers

#!/bin/sh
if [ "$#" = "1" ]; then
        user="$1"
else
        echo "\nUsage: `basename $0` user_to_kill \n"
        exit 1
fi
if [ "$user" = `whoami` ]; then
        echo "\nI am not going to kill me.\n"
        exit 1
fi
if [ "$user" = "root" ]; then
        echo "\nI am not going to kill root.\n"
        exit 1
fi
if [ -z "`ps -ef|grep ^$user`" ]; then
        echo "\nI do not see \"$user\" logged in\n"
        exit 1
fi

# Below are some loops to try to "hang them up", then
# try to terminate their sessions, then flat out
# kill them.
kill_cmd="sudo kill"

for each1 in `ps -ef | grep "^$user" | awk '{print $2}'`
        do
                $kill_cmd -1 $each1
        done
sleep 1
for each15 in `ps -ef | grep "^$user" | awk '{print $2}'`
        do
                $kill_cmd -15 $each15
        done
sleep 1
for each9 in `ps -ef | grep "^$user" | awk '{print $2}'`
        do
                $kill_cmd -9 $each9
        done
echo "\nDie, $user !  \n"

#!/bin/sh
trap '' 1 2 15
my_procs=$(ps -ef | grep ^`whoami`| awk '{print $2}')
kill -1 $my_procs >/dev/null 2>&1
kill -15 $my_procs >/dev/null 2>&1
sleep 5
# Goodnight
kill -9 $my_procs >/dev/null 2>&1